Pressurization

Question 0

The Cabin Pressure Control System (CPCS) is comprised of two subsystems:

Digital \_\_\_\_\_\_\_\_\_\_\_\_\_\_ (Automatic Mode)
Redundant \_\_\_\_\_\_\_\_\_\_\_ (Manual Mode)

Answer 0

electropneumatic

pneumatic

Question 1

The pressurization system controls cabin __________ by regulating the discharge of conditioned air from the cabin.

Answer 1

pressure

Question 2

Control of cabin pressure is maintained in the automatic mode by a _________ controller and requires a _________ altitude to be entered prior to takeoff.

Answer 2

digital

Landing

Question 3

When operating in AUTO mode, the ____________ outflow valve ________ slaved to the ____________ outflow valve when the manual rate knob is in the fully ________________ position

Answer 3

pneumatic

electropneumatic

counterclockwise

Question 4

If cabin altitude exceeds ______________ feet, the CPAM sends a signal to the aural warning system generating the voice message “__________”, and the cabin altitude on the EICAS turns ______.

Answer 4

9,900 +/- 100

cabin

red

Question 5

Upon initial power up of the aircraft, the digital controller will indicate ______ across the display screen. if an error is detected during the BIT test, the display screen will display a _____ _____.

Answer 5

8s

fault code

Question 6

If the cabin differential pressure is greater than ___________ psi, the indication on the EICAS becomes _______ or ______.

Answer 6

8.5

amber

Red

Question 7

The ______ button can only be activated in the AUTO mode.

Answer 7

Dump

Question 8

In case of an electrical failure leading to a complete automatic mode shutoff, manual mode should be selected by pressing the __________ button.

Answer 8

AUTO/MAN

Question 9

When operating in manual mode the cabin rate of climb or descent is controlled by using the ____________.

Answer 9

Manual Controller

Question 10

In the automatic mode, the cabin is _____________ for takeoff and landing.

Answer 10

overpressurized

Question 11

When taking off with the pack valves closed, the outflow valves will be ________.

Answer 11

Closed

Question 12

The takeoff sequence for pressurization lasts until the theoretical cabin altitude becomes greater than the actual cabin altitude or until ______ minutes have elapsed, whichever comes first.

Answer 12

15

Question 13

The maximum differential pressure is _____ psi.

Answer 13

8.4

Question 14

The auto mode normal maximum differential overpressure is _____psi.

Answer 14

8.6

Question 15

the maximum differential negative pressure is _____ psi.

Answer 15

-0.3

Question 16

When in the automatic mode rapid depressurization is commanded by the _____ button, which raises the cabin altitude to above ____________ feet maximum.

Answer 16

Dump

14,500 +/- 500